1. A. Using the Steam Tables, determine the amount of cooling water needed by a condenser in kg/sec if wet steam comes into the condenser at P= 610.44mmHG vac and 99.47 % moisture , mass flow rate = 7200 + (X/SN) kg/hr. Cooling water enters the condenser at 12 B. Draw the schematic diagram of the condenser and process in the PV and TS TA deg C and leaves at 21 deg C. Answer: diagrams below. Cp H2O = 4.187 KJ/(kg-K): Schematic diagram of heat exchanger =condenser

1. A. Using the Steam Tables, determine the amount of cooling water needed by a condenser in kg/sec if wet steam comes into the condenser at P= 610.44mmHG vac and 99.47 % moisture , mass flow rate = 7200 + (X/SN) kg/hr. Cooling water enters the condenser at 12 B. Draw the schematic diagram of the condenser and process in the PV and TS TA deg C and leaves at 21 deg C. Answer: diagrams below. Cp H2O = 4.187 KJ/(kg-K): Schematic diagram of heat exchanger =condenser

Refrigeration and Air Conditioning Technology (MindTap Course List)

8th Edition

ISBN:9781305578296

Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Chapter40: Typical Operating Conditions

Section: Chapter Questions

Problem 2RQ: The typical temperature relationship between a standard-efficiency air-cooled condenser and the...

See similar textbooks

Similar questions

The most popular refrigerant used in the past for residential air-conditioning is R- ________.
Four methods for controlling head pressure in an air-cooled condenser are ______, ______, _______, and
The typical temperature relationship between a standard-efficiency air-cooled condenser and the ambient temperature is A. 50F. B. 40F C. 30F. D. 20F.
1. A. Using the Steam Tables, determine the amount of cooling water needed by a condenser in kg/sec if wet steam comes into the condenser at P= 610.44mmHG vac and 99.47 % moisture , mass flow rate = 7200 + (SN/X) kg/hr. Cooling water enters the condenser at 12 deg C and leaves at 21 deg C. Answer: B. Draw the schematic diagram of the condenser and process in the PV ahd TS diagrams below. Cp H2O = 4.187 KJ/(kg-K): Schematic diagram of heat exchanger =condenser
1. A. Using the Steam Tables, determine the amount of cooling water needed by a condenser in kg/sec if wet steam comes into the condenser at P= 610.44mmHG vac and 99.47 % moisture, mass flow rate= 7200+ (X/SN) kg/hr. Cooling water enters the condenser at 12 deg C and leaves at 21 deg C. Answer: B. Draw the schematic diagram of the condenser and process in the PV and TS diagrams below. Cp H20 = 4.187 KJ/(kg-K): Schematic diagram of heat exchanger =condenser S 2. Use only the MD below to solve this Item; use it by plotting data and process to determine items being asked. Steam enters a turbine at 117.4308 atmgage and 932 deg. F, and expands isentropicaly to 177.17 inches of Hg. For 2 + (X/SN) kg/sec of steam, what is (a) the ideal work done (KI/sec) if AKE = 0 and actual exhaust enthalpy is 2700 KI/kg. a)Ans: (b)ne =_ (c)Determine: (e) Actual steam temp ideal steam moisture at exhaust. Ans: at the exhaust. Ans. g) change in entropy during the actual process. Ans 3000 2500 2000…
A. Using the steam tables, determine the amount of coolimg water needed by a condenser in kg/sec if wet steam comes into the condenser at P= 610.44mmHG vac and 99.47% moisture, mass flow rate= 7200 + (100 (value of x) /25 (value of SN)) kg/hr. Cooling water enters the condenser at 12 deg C and leaves at 21 deg C. Answer: ___ B. Draw the schematic diagram if the condeser and process in the PV and TS diagram. Cp H2O= 4.187 KJ/(kg-K) The value 100/25 signify X/SN
1. A. Using the Steam Tables, determine the amount of cooling water needed by a condenser in kg/sec if wet steam comes into the condenser at P= 610.44mmHG vac and 99.47 % moisture, mass flow rate = 7200 + (10/13) kg/hr. Cooling water enters the condenser at 12 deg Cand leaves at 21 deg C. Answer: diagrams below. Cp H20 = 4.187 KJ/kg-K): Schematic diagram of heat exchanger =condenser B. Draw the schematic diagram of the condenser and process in the PV and TS V 2. Use only the MD below to solve this Item; use it by plotting data and process to determine items being asked. Steam enters a turbine at 117.4308 atmgage and 932 deg. F, and expands isentropicaly to 177.17 inches of Hg. For 2 + (10/13 kg/sec of steam, what is (a) the ideal work done (KJ/sec) if AKE = 0 and actual exhaust enthalpy is 2700 KJ/kg. a)Ans: (b)ne =. (c]Determine: ideal steam moisture at exhaust. Ans: (d) Actual steam quality at exhaust Ans: (e) Actual steam temp g) change in entropy during the actual process. at the…
A. Using the steam tables, determine the amount of coolimg water needed by a condenser in kg/sec if wet steam comes into the condenser at P= 610.44mmHG vac and 99.47% moisture, mass flow rate= 7200 + (100/25) kg/hr. Cooling water enters the condenser at 12 deg C and leaves at 21 deg C. Answer: ___ B. Draw the schematic diagram if the condeser and process in the PV and TS diagram. Cp H2O= 4.187 KJ/(kg-K)
3.) An ammonia compressor operates at evaporator pressure of 316.02 kPa and a condenser pressure of 1557 kPa. A twin-cylinder compressor with bore to stroke ratio of 0.85 is to used at 1200 rpm. The actual volumetric efficiency is 92% and compression and mechanical efficiency is 78% and 80% respectively. For a cooling capacity of 25 TR, (a) the sketch the p-h diagram labeling the evaporating and condensing temperature and pressures (b) define the all properties of ammonia taken from saturation table. Determine (c) the quantity of cooling water in the condenser in kg/min if the increase in temperature is 8°C, (d) the bore and stroke expressed in cm and (e) the size of the driving motor in hp. Given: h2 = h at 1557 kPa and s2 = s1 1695 kJ/kg
A. Using the Steam Tables, determine the amount of cooling water needed by a condenser in kg/sec if wet steam comes into the condenser at P= 610.44mmHG vac and 99.47 % moisture , mass flow rate = 7200 + (10/25) kg/hr. Cooling water enters the condenser at 12 deg C and leaves at 21 deg C. Answer: ___________________ B. Draw the schematic diagram of the condenser and process in the PV and TS diagrams below. Cp H2O = 4.187 KJ/(kg-K):
I. Condensing temperature = 40 C II. Evaporating temperature = 5 C III. Temperature of solution entering generator = 80 C IV. Temperature of solution leaving generator = 100 C V. Assume saturated conditions for states 3, 4, 8, and 10. VI. Saturated steam at 0.2 MPa enters the generator and leaves as saturate water: Compute: a. the required mass flow rate of the steam (kg/hr) per kW of refrigeration produced b. the Heat Rejection Ratio, HRR = (Qabsorber + Qcondenser)/Qevaporator of the system.
QUESTION 14 An industrial refrigeratot uses (NH3) Ammonia, and a reciprocating compressor. At the begining of compression the refrigerant is dry staurated at 1bar and operates adibatically with index 1.3 and copression ratio 20. At the final stage, the fluid is saturated vapour. Using the prescribed property table, the specific volume after compression is (to 4 d.p) in (unit symbol). The volumetric ratio is (to 4.d.p) and the final specific volume is (to 2 d.p.). The work done on the refrigerant during the process is (to 1 d.p in kilo of unit symbol). The initial specific enthalpy of dry saturated (2 d.p) in (kilo of unit symbol), while that refrigrant is of after compression is (1 d.p) in (kilo of unit symbol) and the initial specific internal energy of dry saturated refrigrant is (2 d.p) in (kilo of unit symbol) then (3 d.p) in (kilo of unit symbol) after compression. The heat transferd per unit mass to the or from the the cylinder walls during the process is (to 2 d.p. in kilo of…