Only complete and detailed solution will receive five stars. Please provide deta
ID: 2995481 • Letter: O
Question
Only complete and detailed solution will receive five stars. Please provide detained solution with all steps listed.Thank you!!!
Solar radiation is incident on the outer cover of a solar collector at a rate of 700 W/m2. A typical cover can transmit between 70 and 90 percent of the incident radiation. To meet the hot water needs of a family in summer you first consider installing two collectors that cover a roof area of 1.2 m * 2 m. To be safe for handling, the temperature of the cover cannot exceed 35 degreeC. You can assume the effective sky temperature for radiation exchange between the glass cover and the open sky is -40 degreeC. For the size of the tubes attached to the absorber plate the water flow rate can be between 1 and 2 kg/min (e.g., 1.0, 1.1, 1.2, 1.3, 1.4, 1.5, 1.6. 1.7, 1.8, 1.8, 2.0 kg/min).
Assuming the back surface of the absorber plate is heavily insulated and that the only heat loss occurs from the external cover in the collector, you must calculate
(a) The total rate of heat loss from the collector;
(b) The collector efficiency (the ratio of the amount of heat transferred to the water to the solar energy incident on the collector); and
(c) The temperature rise of water as it flows through the collector.
Question: Can this solar collector be used to heat water in the house all year long? Explain based on your analysis.
The variables: (1) solar collector size, (2) ambient air temperature, (3) wind velocity,
(4) emissivity of the solar plate cover, and (5) the rate of water flow passing through the tubes
Explanation / Answer
Hi, I have provided detailed solution below showing matlab analysis as well. If you like it please rate me as best. :)
Calculation and Analysis are made using the Reynolds Number Equation for internal flow, Nusselt Number Equation for laminar flow, heat transfer coefficient equation for flow over a flat plate, Heat Transfer Equation for Convection and Radiation, Total Heat Transfer Equation, Efficiency of Collector using Heat Transfer value, and Mass Flow Rate Equation.
Parameters and values for Calculation are to be I=700W/m
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.