Prof. Dr. Edrees Muhamad Tahir Harki, the Rector of the Erbil Polytechnic University visited the Erbil Medical Technical Institute and was welcomed by Asst. Prof. Mr. Umed Arshad Hawezi, the Dean of the Institute, the Dean Assistant and several heads of departments.
Then the Rector met with the students of the criminal evidence department, which is the first scientific department in Iraqi universities in the Erbil Medical Technical Institute for employees of the Ministry of Interior of the Kurdistan Region.
The Rector pointed out the importance of studying in this scientific department and assured them of the university’s full support.
Meanwhile, Prof. Dr. Edrees Muhamad Tahir Harki opened an art exhibition for female students in the Erbil Technical Institute.
After visiting the exhibition, the university Rector congratulated the organizers of the exhibition and the students who exhibited their products and works in the exhibition.
He also had a close discussion with the participants of the exhibition and expressed his support for the further development of their work.
On Wednesday, December 20, 2023, his Excellency Prof. Dr. Edrees Muhamad Tahir Harki, the Rector of the University visited the Pedagogy Center and participated in a lecture of the course. He delivered a speech about the skills and abilities of modern teachers and the characteristics that modern teachers should acquire. He said: “Teachers should make the learning environment a modern learning environment through these skills and try to enable students to acquire skills that they can use in practice to find their place in the labor market,”.
In another part of his statement, the rector considered it necessary for teachers to create a link or relationship with the labor market in order to know what the contemporary needs of the labor market are and the skills that the labor market needs to develop its curriculum on this basis, the university becomes an institution that serves society in practice.
At the end of his speech, Prof. Dr. Edrees Muhamad Tahir Harki congratulated the pedagogical center, teachers and supervisors of the course and wished success to the participants.
Within the continuation of the work and activities of the American Organization (IREX) through the university work centers, a group of the Erbil Technical University students participated in an international activity alongside the universities of Iraq, the United States, and Jordan for (8) weeks.
The event was a competition entitled (Global Solutions Sustainability Challenge), dedicated to finding a solution to one of the challenges by creating a product and introducing it to the labor market. Our students were able to present a product for general agricultural and dry season purposes.
It is worth mentioning that our university team was one of the five successful teams in the semi-finals. In the final stage, they were able to maintain its status as the only university in the Kurdistan Region and Iraq. Moreover, they could win the second place worldwide and became one of the winners of the financial prize of the event. Cheerfully, our university team (Team 1 the Rising Sun) received a warm welcome from the audience and we were able to get the maximum number of votes for the favorite team, as a result of an excellent performance.
As its normal activities, teams from Iraqi and Jordanian universities will get united with teams from US universities to form an international team. This time our university team got united with Lone Star College, Houston, Texas.
It is worth mentioning that the university team was supervised by teachers (Sarwan Sadiq Hassan and Azhin Saber Ali) teachers of the Department of Analysis of Shaqlawa Technical College.
Congratulations to all students, teachers and staff of the university.
Global energy consumption has risen over the past decade, driven by the growth in population and the economy. The building sector is the largest energy consumer, accounting for 40% of total energy and causing one-third of CO2 emissions. Half of building energy consumption goes to HVAC systems. Thermal energy storage offers an excellent method for providing sustainable energy that can be utilized for free cooling, heating, and ventilation in buildings.
The free cooling system stores thermal energy in thermal energy storage during the night and utilizes it throughout the day. Latent heat thermal energy storage is recommended due to its high energy capacity, minimal impact on temperature and volume changes. The primary challenges associated with integrating PCM in free cooling systems pertain to the thermophysical properties of PCM itself and the system's reliance on climatic conditions.
In hot climates, solidifying PCM may encounter challenges. As a potential solution, there is a proposal to incorporate an evaporative cooling system with a PCM-to-air heat exchanger, with the goal of facilitating the PCM solidification process.
In this study, the enthalpy method has been employed in the CFD model for the PCM-to-air heat exchanger, and the EES model has been utilized for the entire system. The system consists of a multi-stage evaporative cooler and a PCM-to-air heat exchanger. According to the CFD findings, the melting and solidification time is reduced with decreasing PCM panel thickness, decreasing air channel height, increasing PCM panel length, and higher flow rate of HTF. The main parameter to change melting and solidification time is the temperature difference between HTF and PCM’s melting temperature.
The primary objective of this study is to design, construct, and develop a cooling and ventilation system that incorporates both evaporative cooling and a PCM-to-air heat exchanger.
The system employs organic paraffin-based PCMs-RT21HC and RT25HC, arranged in series to reduce melting and solidification durations. Experimental and numerical findings demonstrate that starting with PCM RT21HC in the heat exchanger reduces solidification time, while initiating with PCM RT25HC shortens the melting time. Also, the results clearly demonstrate that the solidification time is significantly longer compared to the melting time. PCMs completely melt in less than 4 hours, whereas PCM-RT21HC does not solidify completely even after 12 hours.
Utilizing PAHX without a cooling system can provide thermal comfort for less than 4 hours, but when combined with evaporative cooling, the PCMs can solidify, enabling the system to operate continuously and effectively.
The system offers cooling and ventilation, effectively extending indoor thermal comfort by stabilizing the outlet air temperature through the use of PCM to air heat exchanger. Typically, the supply air temperature to the conditioned space ranges between 21 to 25°C.