Sajjad Bigham

Title: Sajjad Bigham: Innovator in Absorption Refrigeration Systems

Introduction

Sajjad Bigham is a notable inventor based in Gainesville, FL (US). He has made significant contributions to the field of absorption refrigeration systems, holding a total of 3 patents. His innovative designs focus on enhancing the efficiency of these systems through advanced engineering techniques.

Latest Patents

One of his latest patents is for a "Component and efficient plate and frame absorber." This invention features an absorber designed for an absorption refrigeration system, which includes fins positioned over the plate to promote fluid distribution as a nearly continuous thin film. The design incorporates rows of evenly spaced fins that occupy a portion of the active width of the plate, with adjacent rows offset by the width of the plate. Additionally, a combined evaporator-absorber module is constructed, where the absorbing face of the absorber is parallel to the evaporating surface of an evaporator. This innovative design allows for the absorber solution and refrigerant to fall as parallel sheets of liquid, while a porous hydrophobic membrane isolates the falling absorber solution from the falling liquid refrigerant.

Another significant patent is for "3D microstructures for rapid absorption/desorption in mechanically constrained liquid absorbents." This invention includes one or more micro-channels with a 3-D structured heat-exchanging surface and a membrane that is permeable to a solvent of the solution used in the absorber or desorber. The 3-D structured surface enhances the mixing of hot and cold solutions, which reduces concentration and temperature differences, thereby improving the efficiency and rate of absorption or desorption of the solvent.

Career Highlights

Sajjad Bigham has worked with reputable organizations, including the University of Florida Research Foundation Inc. and UT-Battelle, Inc. His experience in these institutions has allowed him to further develop his expertise in absorption refrigeration technologies.

Collaborations

Throughout his career, Bigham has collaborated with talented individuals such as Saeed Moghaddam and Mehdi Mortazavi. These collaborations have contributed to the advancement of his innovative projects and patents.

Conclusion

Sajjad Bigham is a distinguished inventor whose work in absorption refrigeration systems has led to several patents that enhance efficiency and functionality. His contributions to the field reflect a commitment to innovation and engineering excellence.