Johnston Engineering President, Andy Johnston P.E., has over 20 years of experience in conducting low-uncertainty experiments, R&D process & device characterization, device verification, and lifecycle testing. JE provides expertise in mechanical engineering, thermal, fluid-flow, and structural analysis, system-level design, experiment development, test fixture design, custom fabrication, data collection, and correlation analysis. JE has completed over 150 projects including Direct Air Capture (DAC) and Boiler Exhaust Carbon Capture projects, pulsed power demonstration units, LDES, 5 hydrogen projects including scale-up, design, testing of electrolysers and reformers. Our core competencies includes custom hardware design & build, thermal management, fluid distribution, electronics packaging and cooling solutions, fans, pumps, piping, liquid-cooled cold plates, immersion cooling, custom heat exchangers, and vapor compression systems. JE uses an analysis-driven design approach to develop custom low-uncertainty experiments including both custom and off-the-shelf components and sensors, build and assemble the completed test fixture, conduct testing and reporting