View Full Version : Fundamentals

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  1. cooling volume
  2. Maximum Service Operation of D48 Type Core Drier
  3. Pressure changes and temperature through the cycle
  4. Hot gas bypass in two-stage cascade, low temperature system?
  5. Filter change Frequency?
  7. Fgas record questions
  8. Oilchange, how to ?
  9. why useful "perpettum mobile" is not possible in thermodynamics ?
  10. How to determine cooling load of a chilled water cooled AHU?
  11. Newbie on split units
  12. minimum distance between wall mounted split and ceiling ????????????????
  13. Vac pump on suction or discharge valve
  14. Ice tank storage capacity
  15. Superheat
  16. Anybody has specs or manual of 2006, Thermocold (made in Italy) Chiller (GC-1092-G0)?
  17. meteorogical data (DB temp, WB temp etc...)
  18. Refrigeration System cleanout
  19. temperature higher than set temp(-80c) at the bottom of freezer
  20. how inverters control condensation pressure ?
  21. Discharge Line sizing?
  22. Cooling capacity??
  23. Kriwan delta-p
  24. How to Calculate Kw or BTU
  25. Temperature and Relative Humidity of fruits and vegetables stored in Deep freezers
  26. Evaporator hell: Tube in tube leaking
  27. filter driers
  28. Internal Drain trap
  29. How much gas will be required......pleaseeee help
  30. Differential pressure - 2 Way valve
  31. Daikin RY200KUY1 u4 error code
  32. Blocked air-con unit
  33. help beginner on r600a !
  34. super heat of blast freezer
  35. DIY Large Refridgeration
  36. over condensing..
  37. how to charge 2 to split ac unit in heating mode
  38. changing a comp from R22 to R290
  39. Abnormal sub-cooling - lack of refrigerant
  40. R1150 or R23 for cascade?
  41. piping of the liquid line
  42. cooling tower capacity
  43. Cold Storage for vegetables?
  44. hot-swappable "refrigeration units"?
  45. Split heat pump piping design
  46. heat pump compressor run problem
  47. CO2 and oil
  48. sub cooling valve
  49. Treated Fresh Air Duct
  50. Purging Capillary Tube with Nitrogen
  51. Re-use of cold in refrigeration system
  52. Better refrigerant?
  53. Reciever or not
  54. Ice on suction line
  55. Ammonia condensing pressure
  56. Is this doable, building your own specialised fridge ........... let me explain!
  57. Condenser Pressure Control
  59. water purification
  60. Heat transfer coefficient for car
  61. liquid line distributor
  62. Frost
  63. copper evaporators iinstead if aluminium
  64. Saturated Suction Temperature and Superheat
  65. Dx coil control hell
  66. Flooded Evaporator?
  67. Condenser's Liquid Temperature of a Freezr
  68. Capilliary size
  69. Evaporator temperature value
  70. A few basics...
  71. About system balancing
  72. aga fridge problem
  73. once more about oversized evaporator
  74. Finding the kw rating of a cooler
  75. Sub cooled r22 still flashing?
  76. Non destructive testing
  77. Evaporator Fin spacing Defrost
  78. Desuperheating by liquid injection
  79. frost on compressor
  80. pressure at different points in refrigerator having R134a
  81. Duct fittings area Calculation
  82. Understanding Motor Terms
  83. electric devices
  84. Cooling capacity and time taken to achieve desired cooling
  85. Mollier charts
  86. Psychrometric software
  87. difference capacity unit
  88. installing elbows in split ac connecting pipes
  89. charging window uints/cylinder freezing
  90. Centigrade !!!
  91. Typical U-value of Drycooler/Air Cooled Heat Exchanger
  92. Ammonia evaporative condenser
  93. chill room drying
  94. Does Low and High pressure vary under different operating condition
  95. Oil charge
  96. When will a tube explode?
  97. Synthetic Refrigerant Additive
  98. How To Calculate RH% ?
  99. Confusing The Calculation Part Between Refrigerant's Superheat and Sub cooling
  100. How To Calculate PDU and Kw For Coldroom Without Software?
  101. inverter systems
  102. fresh air
  103. ahu coil tev
  104. txvalve oriface
  105. ice on suction line
  106. Suction line riser
  107. Building a small cold room in a bakery
  108. Humidity Control
  109. Problem - Liquid Unable To Become Vapor During Suction
  110. Trouble shooting
  111. Local and remote control of air conditioning by BRC1D52 controllers
  112. Help needed on Sequence of operation on a Cold-Storage
  113. phtx valve question
  114. Pressure Balance
  115. Calculation of the cooling tower evaporation
  116. Anyone interested in helping me with my project? -40c cold plate
  117. Internal Pressure Relief
  118. pump down / txv
  119. digital vac stat
  120. Evacuation
  121. Bitzer Motor 1 vs Motor 2
  122. water cooled condenser & water cooled iol cooler..
  123. Why Liquid Line Will Ice-Up Once The Liquid Pass Through The Expansion Valve?
  124. On coil / off coil temperature
  125. C.o.p
  126. how to calculate the suction,discharge,and liquid line capacities
  127. Help explaining a weird phenomenon in a heat pump!!
  128. Water volume for 500kW ACHE (Drycooler)
  129. Chilled Water Buffer Vessel Sizing
  130. DX Evaporator
  131. One-Stage & Two-Stage Refrigeration Cycles
  132. DX COil Sizing
  133. Sensible Heat ratio
  134. Reference ISO standards For Marine & Offshore HVAC
  135. Number of rows for cooling coil
  136. newbie just trying to get a little help
  137. Solar Powered Refrigerator
  138. Rotary compressor cooling
  139. Cooling Dock Load Calculation
  140. Real Vapour Compression cycle information
  141. Chillers Maintenance
  142. Need Some Help (Automotive CFC Recovery)
  143. "Active Heat recovery unit"
  144. Refrigeration Duty
  145. Volume of Chilled Water in the System
  146. Room Pressurization
  147. How to make freezer slow freeze poultry
  148. help-Working Principle of Electronic Expansion Valve
  149. Velocity at air terminal
  150. Pressure drop across nozzle
  151. help-How does AXV maintain constant pressure in evaporator ?
  152. evaporator
  153. saturated conditions in a receiver tank PROVE ME WRONG
  154. Peltier as crankcase heater?
  155. Sound pressure from fan
  156. Refrigeration Calculations
  157. superheat
  158. refrigeration capacities
  159. Compressors with high side crankcase
  160. Co2 as a purging gas.
  161. how to recognize the capacity of compressor
  162. system cooling capacity
  163. Specific heat for rapeseed oil
  164. Ecological COP and Availability Loss
  165. Evaporator CTD
  166. Mix and match physical components - can I do this?
  167. Ahu cooling capacity
  168. Heating Coil Off Coil Condition
  169. the compressor's cooling capacity difference from Bitzer selction software
  170. Using R22 or R407C in a R410A condensing unit
  171. high discharge temperature
  172. fridges in boats
  173. CoolPak software Help
  174. Why the expansion valve is in the outdoor unit in split a/c?
  175. Recommended product storage Temps & T.D
  176. Total Heat Transfer Area: Vapour Compression Refrigeration System
  177. HELP with: Evaporator and Condenser Surface Areas
  178. R 134a P-h (Mollier) Chart
  179. How to calculate pull-down time
  180. Air change rate
  181. Mr Mad and Big Pony Please explain
  182. Internal Heat Exchanger (Evaporator)
  183. TXValve selection
  184. Finding temperature at Evaporator entrance
  185. how to calculate actual air cooled condenser TD.
  186. danfoss engineer
  187. How to setup condition and dimensioning
  188. cross-charge expansion valve
  189. Target superheat
  190. Start up an AC unit
  191. Choosing the evaporator and condensator
  192. Water Chiller Design
  193. Air Infiltration Question and help!
  194. will liquid receiver make flash gas?
  195. Can someone familiar with carpigiani batch models help me here?
  196. Test conditions on data sheet compressor
  197. Testing with a Megger
  198. Condenser temperature according to the ambient
  199. Does a refrigerator work better when room temp is increased????
  200. Cold room construction
  201. Tubing
  202. Capillary tube and TEV
  203. low temperature poly glycol circulating pumps
  204. Fans for AC unit
  205. Buffer Vessel Location
  206. Materials used in Evaporator and Condenser
  207. Testing and commissioning - witness testing, data collection report forms
  208. Cooling Load for the SS tank
  209. Evap and condenser question
  210. Help please with calculation
  211. Fans resistance and operating point
  212. Help theary
  213. Multiple fans
  214. Few questions on rate of freezing in freezer
  215. Where to buy tube benders for small benders with short radius
  216. Will a laboratory freezer be suitable for a slow freezing project?
  217. Glass Condensation
  218. Purchasing a 12 V DC Refrigerant Compressor
  219. System sizing help please
  220. Limitation of Refigerant
  221. Refrigerant cylinder heater blanket
  222. HELP removing evaporator cover SAMSUNG RF268abrs
  223. Please give guidance on building a slow freezer (improved version)
  224. Pipe trap riser
  225. Peltier Device for superheating and cooling Aircon Gas
  226. Wondering about double acting compressors
  227. Right Pipe dimensioning
  228. The Final Project. About.. Help me Guys...
  229. Suction accumulator requirement
  230. Am I using the correct liquid injection valve
  231. Ask me please any question regarding "Theory of absorption Chillers'
  232. Newbie help!
  233. refrigeration capacities
  234. Compressor
  235. Screw compressor
  236. High pressure drop
  237. Vapor-Liquid Pressure
  238. i have problem with pumps
  239. Polystyrene coldroom panels
  240. Hello, I need some technical help
  241. New to this forum - Coldroom Calculations
  242. Matching components in refrigeration system
  243. apprentices
  244. No condensing of refrigerant in condenser coil
  245. Coil Sizing for ammonia refrigeration system
  246. Speed in a tube, how to calculate
  247. Evaporator Distributors
  248. A couple of questions on capillary tube design
  249. High condenser sub cooling
  250. superheat hvac buddy