hi every one
well i have a project contains 3- water cooled chiller and 3-cooling towers at and i ve been asked to make a schematic dwg for these equipments ,to control the cooling water flow rate i will use three way valve my question is where is the best location to put is it before the...
the cooling water thermodynamic analysis used for cooling water chillers is
1TR=3.5KW= m CPw (twi-two)
m= 3.5 /(4.18 x (32-37))
= 0.167 kg/s
volume flow rate = 2.65 gpm
is that right?
cause i know that as a rule of thumb that 1 TR needs 3 gpm cooling water
dear all
in an industrial project the chilled water pump is described as 15mAq as head by the designer i cannt figure out what is that unit mAq .i need help
HI
i am using a 100% FA A.H.U. with a cap. of 2000 L/S with heat recovery this AHU IS DX PACKAGE UNIT HAP output data was that the total coil load = the sensible load and it cannot be right ! there is for sure a latent load cause when i changed the type of the AHU to tempering it calculates...
hi,,
i am using daikin vrv software to design a redential system but i cannt determine what is the difference between cooling only system and heat pum??
hi guys,,
the designing of specified areas at hospitals needs a define value of R.H. like 70% the hap define the resultant r.h. on waht bases and if i want to change the relative hunmidity what shall i do?
thanks in advance
hi guys
i need a standard values for steam flow rates and presurres to different applicatin uses steam at hospitals laundaries, etc.. from a refrence like ASHRAE for example
thanks
hi
i had a small capacity air handling unit 2360l/s,250pa the fan motor power =1.36kw i think it is single phase but i have been told that air handling unit must be use 3 phase despite its low electrical power is this true?
hi guys,
how can i use jet fans at car parking with the use of exhaust and fresh fans with large louvers and using that jet fans to circulate air across lanes if i use 6 ach for example how can i determine jet fan thrust?
thanks in advance
hi guys,,
the vfd controlling pump velocity acts when the load decreases the pressure drop increases giving signals to vfd to reduce frequency hence velocity so the flow rate decreases my question is what happens to the head of pump? the pump head suppose to over come the all system friction...
hi guys ,,
i ve asked to air conditioning a five stars hotel laundary which service guests rooms, hotel appartments,... a list of equipment of the laundary has been supplied to me like steam heated extractor 40KG and ironer ...etc. and the steam consumption mass flow rate for all these...
hi guys ,,
i want a detailed autocad drawing of hoe to install vrv out door&indoor unit at the same level and iu above and below od unit
thanks in advance
hi every one,,
i ve been asked to conditiong the operation floor & the tower of control of an air port the specification detremine the system which it is ch.water with separate chillers for tower & operation blg. at the control system dual system required if the one chiller failed do not allow...
hi guys
our consultant office has been choosen to design a project using the district cooling and i think it is the second project of this kind at my country so any help will be appreciated i made some researchs on net but i need informations from whome work at this feild...
hi every one i want to know how to make control schematic i saw one contains DI,DO ,AI,AO what is the difference i know that DI is digital input & AI analog input but i dont know for example why is the the temperature sensor is connected to AI while DPS connected to DI .please help me in...
hi
]i ve asked to ventilate boilers water feed pumps there are 3 pumps each 4MW I/POWER any ideas or experience at this issue wil be good
thanx for advance
hi guys
i ve been asked to design an air conditioning system of enclosed staduim its roof is an inclined I beam i its height gradually from its top 5 mt till it reaches 17mt at the bottom. i will use jet diffuser at high height but at the low height what should i do ...
i need a solution of this question
for an air standard cycle atmospheric air is at 27C it is compressed to the high pressure and then cooled to 30C . the turbine exhausts air at 7 C the air leaving the space is at 11 C if the space is 17 KW determine 1-air flow rate ,2-motor power ,3-high...
