Rarinn's Ideas

  To convert solar energy into electricity that will be later used to produce ammonia ( electrolyzing water and Haber–Bosch process ) I propose that photovoltaic thermal hybrid solar collectors (PVT) with compound parabolic concentrators (CPC) mounted on dual axis trackers should be used. cpc_c.ods is my attempt to describe basic parameters of CPC with high-school math (to achieve best results ray-tracing and realistic models of irradiance at various conditions should actually be used).

Folder “new_house” contains drawings of the thin-walled reinforced concrete structure designed to to house a family of humans. Interior structure is surrounded by a thin shell. In between those a thick layer of thermal insulation (mineral or glass wool most likely) would be present. Some insulation is placed in-between interior concrete structure and the ground. Most of the surfaces of this structures are hyperboloids of one sheet . To maximize usage of interior space, shelves and desks specially designed to be placed next to the curved walls should be installed. Proposed windows are rather small, extremely thick and hard to open (actually to be removed), so light tubes could be used to make rooms brighter. Because windows are always closed, decent HVAC system is required. 

This is initial proposal for a crewed lunar program. It is to be based on a large, partially reusable rocket, that is relatively simple to manufacture, placing lightweight two-person spacecraft (lander) in low lunar orbit (LLO). Spacecraft consists of one engine and only single pressurized crew compartment (but cosmonauts have individual pods with life-support that would keep them alive even after depressurization event ). Propellant tanks needed to leave LLO, along with heat shield are stored in orbit while spacecraft lands on the lunar surface. Tanks needed for initial phase of descent are discarded before touchdown.   Launch vehicle