Publications
Assessment of the performance of solar water heater: an experimental and theoretical investigation
Dec 4, 2022Journal International Journal of Low-Carbon Technologies
Publisher International Journal of Low-Carbon Technologies
DOI https://doi.org/10.1093/ijlct/ctac032
Volume 17
This study aims to evaluate the performance of a flat plate solar water heater (SWH) theoretically and experimentally. The thermal performance of the SWH was predicted using Fortran 90 programming language. SWH was designed as a square shape with dimensions of 110 cm length, 120 cm width and 10 cm depth and tested by integrating with a modified solar distiller to increase the water temperature in the basin at a constant mass flow rate of 1.2 l/min. The tests were conducted under the weather condition of Yekaterinburg city, Russia, from June to September of 2019, and a typical day was chosen for each month (19 June, 17 July, 22 August and 15 September). The study revealed that the highest efficiency of the solar water collector obtained at the highest value of the intensity of solar radiation at mid-day. The maximum thermal efficiencies achieved on 17 July of 2019 were ~67% and 66% based on theoretical and experimental analyses, respectively. A simultaneous increase in the water temperature and the intensity of solar radiation has been observed. During the four typical days of the experiment, the highest water temperatures of the solar collector were recorded during midday, i.e. at the inlet, and at the outlet for 19 June, 17 July, 22 August and 15 September 2019, respectively, while the solar radiation intensities recorded are for the test days.
Calculation and Modelling of Cooling Degree-Hours for Some Iraqi Cities
Feb 4, 2019Journal Journal of Engineering and Applied Sciences
Publisher Medwell
DOI DOI: 10.36478/jeasci.2019.4767.4772
Issue 14
Volume 14
The current study dealt with the calculation and modeling of cooling degree-hours for some Iraqi cities, represented by Mosul city as a model for the northern cities, Baghdad as a model for the central cities and Basra as a model for the southern cities. This research was based on previous actual dry-bulb temperature data recorded over the previous 10 years. These data were used to calculate the actual values of the cooling degree-hours for different base temperatures ranging from 14 to 28 °C to cover all cooling application requirement data. In turn, these data were used to obtain the appropriate mathematical model, which can be used to calculate cooling degree-hours values from any base temperature with a small error rate ranging from 0-4% over the summer months for all locations. And after the success of the developed model in three studied cities which represented three different climatic pattern regions in Iraq, developed model can be used as a general model to predicate the cooling degree-hours for any location in Iraq at any base temperature after knowing the mean value and the standard deviation of the dry-bulb temperature for the concerned location.
Design a Software Program to Compute the Gas Turbine Performance
Dec 4, 2018Journal International Journal of Mechanical Engineering and Technology (IJMET)
Publisher Medwell
DOI 9(13), 1319-1326.
Issue 13
Volume 9
The study focused on the effect of ambient Temperature in summer season (June, July, and August) in Kirkuk city on gas turbine thermal efficiency, power produced and adding heat to the cycle through the combustion chamber. Software program by visual studio language is designed to compute all parameters with the specific equations that also easy for the user. The result showed that the thermal efficiency and power decreased with increasing the ambient temperature while the adding heat increases. It observed that the peak efficiency and power will be in June when the ambient temperature at less value, in the same periods the adding heat is at maximum value.
The influence of climatic condition on the Photovoltaic cell performance
May 22, 2017Journal Al-Kitab Journal for Pure Science
Publisher Medwell
DOI DOI: 10.32441/kjps.v2i1.162 ISSN: (2617-1260)
Issue 1
Volume 2
Experimental study of a tubular solar still integrated with a fan
Mar 1, 2014Journal International Journal of Advanced Research in Engineering and Technology
Publisher IJARET
DOI https://iaeme.com/Home/article_id/IJARET_05_03_001
Issue 3
Volume 5
In this commutation, an attempt has been made to increase the productivity of a tubular solar still. A tubular solar still was designed fabricated and tested in the Allahabad climatic conditions. Basin was made up of GI sheet and painted black to increase its absorptivity. Condensing cover made of polycarbonate sheet. Number of experiment was conducted to read the behavioral variation inside the still. A fan is used to increase the rate of evaporation and condensation inside the still. It is observed that by using fan inside the still, daily productivity increased by 8.5%.