Assume 10% forms heat an internal heat load of 2578 btuhr. The temperature difference between the desired temperature and the outside is. Thus typically it will be far less than 1433 btu hr most likely on average youll be using more like 800 btu hr. A client of mine is relocating their server room and they need to plan for ac in there. Power unit conversion between btu ithour and horsepower, horsepower to btu ithour conversion in batch, btuh hp conversion chart. How much of power from btu per hour to horsepower, btuh to hp. The software will suggest standard cooling solutions such as air conditioners, heat exchangers, and air movers. Heat output is measured in british thermal units btus 1kwhr 3412 btuh or btuh is around 293w. Do your own air conditioning calculations to determine the size and capacity of room air. Under this condition, the total data center thermal output is105 kw, or about 50% more than the it load. This is based on published watt specifications from the juniper datasheet for the device. Exchange reading in btu per hour unit btu h into horsepower unit hp as in an equivalent measurement result two different units but the same identical physical total value, which is also equal to their. Convert btu per hour to horsepower power conversion.
I dont know how many servers they have, but what they want from me is a rough estimate of the btu output of. Apr 24, 2017 hp is short for horsepower and btuhr denotes british thermal units per hour. Hp notebook pcs hp coolsense technology hp customer support. Note that rounding errors may occur, so always check the results. On the other hand, if the area you are going to be cooling has lots of shade and very little sunlight exposure, you may want to consider subtracting 10% of the recommended btu. Hp is short for horsepower and btu hr denotes british thermal units per hour. Carrier e20 program the carrier e20 program is much more accurate than the previously mentioned estimation. It is a conversion calculator which converts the power in kilowatts kw to btu per hour btuhr. Thus at most a properly functioning computer will use 420w 1433 btuhr. Based on the 754 watt figure, btushr 754 watts 3600 1054 2577 btus per hour, per server.
This on the web oneway conversion tool converts power units from btu per hour btuh into horsepower hp instantly online. Some ac 4hp produce only 37000 btuhr but ac 4hp with 3 phase power supply is able to produce more than 45000 btuhr. May 01, 2014 this may mean going up to the next available cooling power. Btu british thermal units, btus are a measure used for heating and cooling. The unit symbol of british thermal unit per hour is btuh, or sometimes btuh. Convert hp to btuh hydraulic horsepower to btus per hour. The other way around, how many hydraulic horsepower hp are in one btu per hour btuh unit. I do not understand how he got the idea of 12000 btu h equal 1 hp. The walk in cooler box need about 7000 btuh to reach 32 degree at the coil. When calculating the amount of cooling air conditioning required in a room, you. One btu per hour converted into horsepower equals 0.
Server heat load hewlett packard enterprise community. Apr 24, 2017 converting between two older, nonstandard units may seem strange. Horsepower hp is the name of several units of measurement of power, the rate at which work is done. For example, say you have a conventional office space, two people, lights and a c. Convert horsepower to btu per hour power conversion. This calculator is provided for a quick and approximate check of heat loads. It is also part of the united states customary units. I need to estimate air conditioning needs for a server room.
Cooling an overheated hydraulic system womack machine. Motor load equivalency 3,329 btuhrhp total miscellaneous load 7,315 kbtuday 25. I dont know how many servers they have, but what they want from me is a. Between btu h and hp measurements conversion chart page. Convert btuh to hp conversion of measurement units. Enter the power in kilowatts and press the convert button. How many horsepower hp are in 1 btu per hour 1 btuh. Energy and work unit conversion between horsepower hour and btu it, btu it to horsepower hour conversion in batch, hp. At samsung, we always strive to deliver the best in heating and cooling. You can view more details on each measurement unit. Hp server btu calculation with power supply hpe hardware. Both units measure the amount of power that a device, such as a generator or air. This mode only dehumidifies without any additional cooling.
In north america and many countries, the unit for heat in used today is still british thermal unit or btu. Comment on this article affected products browse the knowledge base for more articles related to these product categories. What is the calculation for heat dissipation in btuhr. Load sensible heat ratio is 86 whatever that means. You rarely would need a full 300w from your power supply. If you were comparing two air conditioning units and one listed the capacity in hp while the other listed its. Using square foot surface of the proposed reservoir and desired maximum t. How to calculate the heat dissipation in btu per hours product line. How to calculate heat load in electricalelectronic panel enclosure.
The hd uses less power when it isnt in use, the cpu and video card use less power when idle, etc. The btu is defined as the quantity of heat required to raise the temperature of one pound of water 1f. It is programmed with a single text field and two control buttons. To calculate heat dissipation, multiply watts by 3. Chilled water chw the building does not have chillers in house so we purchase chw, measured in ton hr, from a district central plant.
In order to come up with the total energy use for the building we had to convert all energy types to a common energy unit, in this case kbtus, and add the totals. Heating btu per hour is 47,654 and cooling btu per hour is 23,547. I have encounted some issue of air conditioner horse power vs btu per hour single phase power supply,i noticed some manufacturer produce their ac air conditioner with 1 hp at 11500 btuhr and some onlt at 8500 btuhr. Btubhp hr the long answer above gives you the more correct way to arrive at this but in ultra simple form and assuming 100% efficiency of everything, you multiply the btubhp hr times the hp of the unit. We would recommend using our btu cooling calculator to determine the specific amount of btus you will need from your air conditioner in order to properly cool your space. Diferent power units conversion from btu per hour to hydraulic horsepower. What are the btu ratings of the nimble cs arrays a. It is the equal power value of 1 hydraulic horsepower but in the btu s per hour power unit alternative. Some ac 4hp produce only 37000 btu hr but ac 4hp with 3 phase power supply is able to produce more than 45000 btu hr. Convert 1 btu h into hydraulic horsepower and btu s per hour to hp. I need to estimate air conditioning needs for a server. Hp is short for horsepower and btuhr denotes british thermal units per hour. Exchange reading in horsepower unit hp into btu per hour unit btuh as in an equivalent measurement result two different units but the same identical physical total value, which is also equal to their proportional parts when divided or multiplied.
Convert power of hydraulic horsepower hp and btus per hour btuh units in reverse from btus per hour into hydraulic horsepower. Converting thr, btu and kw hvacr engineering engtips. The unit symbol of british thermal unit per hour is btu h, or sometimes btu h. The equivalent ton on the cooling tower side actually rejects about 15000 btuh due to the heatequivalent of the energy needed to drive the chillers compressor. Power units represent power physics, which is the rate at which energy is usedup, either transformed or transferred from its source to elsewhere, by various ways within the nature of physics. How to convert power in refrigeration tons rt to btu per hour btuh. If you were comparing two air conditioning units and. The btu british thermal unit is universally accepted as a unit of heat transfer measurement. Install this royal sovereign minisplit air conditioner for allday comfort. Exchange reading in btu per hour unit btu h into horsepower unit hp as in an equivalent measurement result two different units but the same identical physical total value, which is also equal to their proportional parts when divided or multiplied.
How to convert power in refrigeration tons rt to btu per hour btu h. The walk in cooler box need about 7000 btu h to reach 32 degree at the coil. Calculate from power into other power unit measures. How to calculate heat load in electricalelectronic panel. Knowing the equivalent of both unit is necessary as many of the product data sheets are using both units. Total internal power is 10 hp x 2544 btuhp 25440 btuhr plus 100 watts x 3. I do not understand how he got the idea of 12000 btuh equal 1 hp. If you need a custom solution such as custom paint option, increased air flow, or unique dimensions, please contact your sales representative. Hp coolsense technology uses a motion sensor in your notebook computer to sense when your computer is being used in a stationary or mobile setting, and automatically adjusts the computer performance and fan speed to keep the computer cool. For example, the power of a boiler is often expressed in btu, and car engines power is often expressed in horsepower.
How to determine the btu exhausted for juniper firewall. Convert 1 btuh into hydraulic horsepower and btus per hour to hp. Definition of refrigeration horsepower innovative thermal. The total it load of the data center in this case would be 30% of 250 kw, or 75 kw. One refrigeration ton is equal to 12000 btus per hour. Both units measure the amount of power that a device, such as a generator or air conditioning unit, is capable of producing.
Thermal calculator saginaw control and engineering. High temperature refrigeration, 1 hp 12,000 btuhr 1 ton medium temperature refrigeration, 1 hp 8,000 btuhr low temperature refrigeration, 1 hp 4,000 btuhr these definitions will help you identify approximate compressor or system capacities as sometimes listed in various manufacturers catalogs. What are the btu ratings of the nimble cs arrays and es. This is not always recommended, as it is better to have too many btus than not enough. However, below we have listed some general btu recommendations that will help get you started. Suppose you have a 300w power supply and a 19 monitor that uses up to 120w but 110w typically.
Exchange values and measures from one power unit to another unit by quick calculation. Converting between two older, nonstandard units may seem strange. Instantly convert horsepower hp to btus per hour btu it h and many more power conversions online. Technical units conversion tool for power measures. Calculating cooling requirements for data centers apc usa. Adding 15 % to each of those numbers for incorrect factors such as duct sizing, refrigerant charge, dirty coils, air infiltration or leaky ducts we get. Convert btuhr to hp conversion of measurement units. Granted that hp is always going to be less than the power input due to inefficiencies. Mmbtu ithour, mmbh, ton refrigeration, kilocalorie ithour, kilocalorie it. How many btu s per hour are in 1 hydraulic horsepower. Hp dl360r05 x5450 4g rps us svr has all redundant features, including fans and power supplies what should i use as the heat load per server for calculating room conditioning. The british thermal unit is a traditional measure unit of energy, approximately equals 1055 joules. Exchange reading in horsepower unit hp into btu per hour unit btu h as in an equivalent measurement result two different units but the same identical physical total value, which is also equal to their proportional parts when divided or multiplied.
It is most often used as a measure unit in steam generation, heating and air conditioning industries. Through this software program, the building loads are calculated while taking into account construction materials, directional facing, infiltration, schedules of occupancy, equipment loads, people loads, and other setpoints within the hvac system. It is easy to calculate the max possible from a typical computer. Power unit conversion between btu it hour and horsepower, horsepower to btu it hour conversion in batch, btu h hp conversion chart. There are many softwares in the market that greatly help designers to reduce the. Calculate these average losses in hp or if in btu hr, divide by 2545 to convert to hp.
Air conditioning calculations air conditioning systems guide. This equivalent ton is defined as the heat rejection in cooling. In the typical example, the relative contribution of the various types of items in the data center to the total thermal output is shown in the figure. The calculation to determine the btu for adding a piece of equipment to a cabinet to prevent overheating. Qheat transfer per unit time btuhr wmass flow rate. A mechanical horsepower hp is a unit of measurement of power, the rate at. This tool converts horsepower to btu per hour hp to btu h and vice versa. Between btuh and hp measurements conversion chart page. The equivalent ton on the cooling tower side actually rejects about 15000 btu h due to the heatequivalent of the energy needed to drive the chillers compressor. The higher the listed btuhr, the greater the cooling capacity. To convert btu per hour to horsepower use the following equation. The unit is most often used as a measure of power symbol. It depends on the condition of the incoming air both temperature and absolute humidity levels and the conditions you are trying to maintain or achieve in the room.
Power unit conversion between btu ithour and horsepower, horsepower to btu ithour conversion in batch, btu h hp conversion chart. How to convert refrigeration tons to btuhr rapid tables. The british thermal unit btu or btu is a nonsi, traditional unit of heat. Definition of btu british thermal unit table of btus translated into other measurements definition of btuh british thermal units per hour definition of calorie or calories. Use this page to learn how to convert between btus hour and horsepower. Type in your own numbers in the form to convert the units. Convert btuh to hp btu per hour to hydraulic horsepower. A single psu on that server would require 1715 btu, for both you are looking at 3430 btu, lets say your cooling system can cool 25,000 btu, and maintain a specific ambient air temperature of 20 celsius 68 fahrenheit, it current has a load of 24,000btu this is done by adding up all the btu production in the. The equation for heat transfer to a liquid is as follows. I have encounted some issue of air conditioner horse power vs btu per hour single phase power supply,i noticed some manufacturer produce their ac air conditioner with 1 hp at 11500 btu hr and some onlt at 8500 btu hr. Hp coolsense software allows you to specify your cooling preferences.
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